Automatic lubricator.



0. 0. KITTLESON. AUTOMATIC LUBBICATUR.

(No Model.)

(Application filed Mar. 1, 1960.)

Patented July 3|, [900.

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No. 655,090. Patented July 3|, I900.

0. 0. KITTLE-SON. AUTOMATIC LUBBICATOR.

(Application filed Mar. 1, 1900.)

(No Model.) I 2 Sheets-Sheet 2,

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STATES OLEO. KITTLESON, OF LEE, ILLINOIS.

AUTOMATIC LUBRICATOR.

SPECIFICATION; forming part of Letters Patent No. 655,090, dated July 31, 1900.

Application filed March 1, 1900. Serial No. 7,011. (No model.)

will enable others skilled in the art to which it appertains to make and use the same.

My presentinvention relates to improvements in automatic lubricators for use in any connection where a positive feed of oil under pressure is necessary or desirable.

The object of the invention is to produce a simple and inexpensive yet durable device of this class embodying an oil-cylinder supplied with oil from a suitable reservoir fitted With valved delivery-pipes and containing a feed-plunger operated by actuating mechanism connected to and operated by a moving element of the engine or other machinery to be oiled and automatically stopped or thrown out of gear when the plunger has reached the limit of its pressure-stroke.

To this end the device consists of a compactorganization of the elements enumerated, in connection with others,constructed and arranged in amanner to be hereinafter fully described and illustrated.

In the accompanying drawings, Figure l is a side elevation oflmy lubricator or oiler in gear and feeding. Fig. 2 is a sectional elevation with the plunger at the limit of its feed or pressure stroke and in the act of tripping the automaticstop. Fig. 3 is a top plan View showing the worm out of gear in dotted lines. Fig. dis a horizontal sectional view on the line 4 l of Fig. 2, and Fig. 5 is an elevation looking toward the worm and automatic stop.

Referring to the numerals of reference indicatingcorresponding parts in the several Views, 1 indicatesthe pressure-cylinder of my lubricator, mounted upon a suitable base 2, and from which adjacent to its bottom is led a valve-controlled oil-delivery pipe 3. Oil is supplied to this cylinder from an oilreservoir 4, carried by a valve-controlled oilsupply pipe 5, extending through the wall of the cylinder above the delivery-pipe and preferably just below the stuffing-box 6, fitted in the upper end of the cylinder to insure an oil-' tight connection with the feed-plunger 7, de-

signed to be gradually but positively urged within the cylinder to cause theexpulsion of the oil through the delivery pipe or pipes to thepartintendedtobe lubricated. Theplunger is provided with an axial bore 8 for the reception of the feed-screw 9, having a thread engagement with a head-plate 10, bolted or otherwise secured upon the upper end of the plunger and pierced by the screw. If preferred, however, the head-plate may be omitted and the bore threaded for engagement with the feed-screw.

. An inVerted-U-shaped bearing-frame 11 is terminally bolted to; diametrically-opposite sides of thecylinder, and its horizontal bar 12,1oeated above the cylinder, constitutes a bearing for a smooth cylindrical portion of the screw, which is retained against longitudinal movement by collars 13 and 14, keyed thereon above'andbelow the" bar. Lugs 15 and 16 extend horizontally from the upper end of the plunger, being preferably formed upon the head-plate 10. The lug 15 extends toward the vertical bar 17. The lug 16 is recessed to receive the vertical bar 18 and travels thereon and guides the upper end of the plunger as the same is reciprocated by mechanism hereinafter described. This screw actuating mechanism comprises a worm-wheel 19, keyed upon the feed-screw above the bar 12 and which meshes with a worm 19 carried by a worm-shaft 20 and actuated by any, suitable means-as, for instance, a swinging arm 21 designed to be connected to a reciprocating element of the engine and carrying a pawl 22, engaging the teeth of a ratchet-Wheel 23, fixed upon the worm-shaft. As the arm 21 isoscillated by the operation of the engine or other machine the Worm shaft and wheel will be given a step-by-step' rotation, which in turn eifects the gradual rotation of the worm wheel and feed-screw and the steady positive depression of the plunger to force the oil or other lubricant through the delivery pipe or pipes to the part to be lubricated. Mechanism foraccomplishing this general result has been devised heretofore; but theattention of an operator has been required to stop the feed], My'invention in its primary'aspect therefore comprehends a novel automatic stop for automat ically throwing the feed-screw out of gear with its actuating'mechanism when the plunger reaches the limit of its feed-stroke.

To accomplish this, I journal the worm-shaft in terminal bifurcations 24 and 25 of a vertical worm-frame 26, mounted adjacent toits upper end upon a horizontal pintle 27, passed through a pair of lugs 28, projecting from the frame-bar 17, and having its lower extremity constantly urged toward the cylinder by a taining the worm in mesh against the resist i ance of the spring is therefore necessary. This deviceis that element of the invention which I designate the automatic stop, and it comprises a set-lever 30, fulcrumed upon the bar- 17 and provided with a nose 31 and a cam-face 32' at opposite sides of the fulcrum, and'a hand1e33, projecting beyond the cam, for facilitating'the actuation of the lever by the worm-frame into the path of the camface 32, so that when the set --lever is depressed into the horizontal position the camface-will impinge against the pin and urge the lower end of the frame against the resist ance of the spring and will move the worm Fig; I ofthe'drawings. With the parts in this position the plunger will be gradually depressed until at the limit of its stroke the l u-g1' 5, which is a trip-lug, strikes the nose, depressing it and swinging the set-lever to elevate the cam-face from contact with the pin; This tripping of the set-lever releases theworm-frame, which is swung under the impulse of the spring to put the feed-screw theworm-wheel. Thus the oil supplied to the cylinder from the reservoir will be fed under'pressure through the delivery-pipe, and L when-the plunger reaches the limit of its E stroke the'entire device will be automatically 1 thrown out of gear and breakage or derangement of the parts will be prevented. The feed-screw may now be rotated in the reverse direction and the plunger elevated by means of ,a crank 35 at the top of the screw. When it is desired to begin the feeding of a new charge ofoil, the handle of the set-lever is depressed, causing the device to be thrown into gear, as heretofore described, and the operation of feeding the oil and automatically stopping the feed is repeated; but while the structural organization and arrangement herein illustrated and described is thought at this time to v be. preferable I do not limit myself thereto,but -reserve the right to effect such changes, modif fications, and variations as may fall properly within the scope of the protection prayed.

Therefore what I claim, and desire to'secure by Letters Patent, i

1. In an automatic lubric'ator, the combi- 5 nation with a cylinder, plunger, feed-screw and worm-wheel carried by the latter, of a worm, a movable support forthe worm tending to throw the latter out of engagement with I the worm-wheel, and means operated by the j plunger-on the descent thereof, torelease the said support and therebypermit the worm to v disengage the worm-wheel.

hand when desired. A pin 34 projects from Y 2. In an automatic lubricator, the con1bi nation with a cylinder, plunger, feed-screw Sand Worm-Wheel carried by the latter, of a worm, a pivoted spring-urged worm-frame, a set-lever in operative relation with the wormframe and means carried by the plunger for tripping the set-lever.

into gear with the worm-wheel, as shown in 3. The combination with a cylinder, plunger, feed-screw and worm-wheel carried by the latter, of a worm, a pivoted worm-frame, means for urging the frame to throw the worm out of gear with the w0rm--wheel, a pin projecting from the frame, a set-lever comprising a nose and a cam-face engaging the pin and a trip-lug carried by the plunger and In testimony whereof I affix my signature 5 in presence of two witnesses.

OLE O. KITTLESON.

\Vitnesses:

THos. NELSON, JENNIE KITTLESON.

; movable in a path obstructed by the nose of V the set-lever. outof' gear by the removal of the worm from T 

